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The Apollo Command/Service Module (or CSM) was the primary mode of transportation for shuttling the astronauts between the Earth and moon, or for transporting astronauts to Skylab. The Command Module provided a compartment for the crew and the mission's equipment, while the Service Module provided the spacecrafts power and propulsion. The assignment patches for Apollo 1, Apollo 7, Apollo 9, Apollo 10, the Skylab program, and Skylab II included the command/service module in their designs. (Star Trek: First Contact; ENT: "First Flight")

The Apollo Lunar Module (or LM) was a two person landing craft that was attached to the Command/Service Module, and when detached, was used to transport the crew to and from the surface of the moon. Lunar modules were first used with Apollo 9. The assignment patches for Apollo 9 and Apollo 10 included the lunar module in their designs. (ENT: "First Flight") The ascent and descent stages of the module carried fuel tanks filled with Aerozine 50. (TOS-R: "The Cage")